Benchmark: Uniqe Items from Two array of Object

Script Preparation code:
var data = {
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            "keyword_difficulty": 49,
            "serp_bidding_range": "$ NaN to $ NaN",
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                [
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                [
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            ],
            "cpc": "$ NaN",
            "keyword": "addon mozilla firefox"
        },
        {
            "search_volume": "20",
            "paid_difficulty": "0",
            "keyword_difficulty": 5,
            "serp_bidding_range": "$ NaN to $ NaN",
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                [
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            ],
            "cpc": "$ NaN",
            "keyword": "ublock mozilla firefox"
        },
        {
            "search_volume": "40",
            "paid_difficulty": "0",
            "keyword_difficulty": 7,
            "serp_bidding_range": "$ NaN to $ NaN",
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                [
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            ],
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        {
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                [
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            ],
            "cpc": "$ NaN",
            "keyword": "firefox complements"
        },
        {
            "search_volume": "20",
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            "keyword_difficulty": 5,
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                [
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            ],
            "cpc": "$ NaN",
            "keyword": "firefox lte"
        },
        {
            "search_volume": "N/A",
            "paid_difficulty": "N/A",
            "keyword_difficulty": "N/A",
            "serp_bidding_range": "N/A",
            "monthlySearchTrend": [],
            "cpc": "N/A",
            "keyword": "video download helper extension firefox"
        },
        {
            "search_volume": "590",
            "paid_difficulty": "0",
            "keyword_difficulty": 21,
            "serp_bidding_range": "$ NaN to $ NaN",
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                [
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            ],
            "cpc": "$ NaN",
            "keyword": "u origin firefox"
        },
        {
            "search_volume": "70",
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            "keyword_difficulty": 10,
            "serp_bidding_range": "$ NaN to $ NaN",
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            ],
            "cpc": "$ NaN",
            "keyword": "video download manager firefox"
        },
        {
            "search_volume": "320",
            "paid_difficulty": "0",
            "keyword_difficulty": 26,
            "serp_bidding_range": "$ NaN to $ NaN",
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            ],
            "cpc": "$ NaN",
            "keyword": "videohelper firefox"
        },
        {
            "search_volume": "10",
            "paid_difficulty": "0",
            "keyword_difficulty": 4,
            "serp_bidding_range": "$ NaN to $ NaN",
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            ],
            "cpc": "$ NaN",
            "keyword": "firefox video helper downloader"
        },
        {
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            "keyword_difficulty": 46,
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            ],
            "cpc": "$ 0.16",
            "keyword": "download video from mozilla"
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            "cpc": "$ NaN",
            "keyword": "mozilla add on video downloader"
        },
        {
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            "paid_difficulty": "7",
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            ],
            "cpc": "$ 0.17",
            "keyword": "gratis firefox"
        },
        {
            "search_volume": "10",
            "paid_difficulty": "26",
            "keyword_difficulty": 4,
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            "cpc": "$ 1.68",
            "keyword": "firefox erp"
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            "search_volume": "10",
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            "cpc": "$ NaN",
            "keyword": "mozilla firefox download español"
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            "search_volume": "4400",
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            "keyword_difficulty": 51,
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            "cpc": "$ 0.77",
            "keyword": "webstore firefox"
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        {
            "search_volume": "10",
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            "keyword_difficulty": 4,
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            "cpc": "$ NaN",
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        },
        {
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            "monthlySearchTrend": [
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}
Tests:
findIndex
function diff(a, b) { var i, la = a.length, lb = b.length, res = []; if (!la) return b; else if (!lb) return a; for (i = 0; i < la; i++) { if (b.findIndex((obj) => obj.keyword === a[i].keyword === -1)) res.push(a[i]); } for (i = 0; i < lb; i++) { if (a.findIndex((obj) => obj.keyword === b[i].keyword === -1)) res.push(b[i]); } return res; } let uniqueArr = diff(data.list1, data.list2);
map
function diff(a, b) { var i, la = a.length, lb = b.length, res = []; if (!la) return b; else if (!lb) return a; for (i = 0; i < la; i++) { if (b.map((obj) => obj.keyword === a[i].keyword === -1)) res.push(a[i]); } for (i = 0; i < lb; i++) { if (a.map((obj) => obj.keyword === b[i].keyword === -1)) res.push(b[i]); } return res; } let uniqueArr = diff(data.list1, data.list2);
for loop
function diff(array1, array2) { var unique = [], i, j, k, l, la = array1.length, lb = array2.length; for (i = 0; i < la; i++) { var found = false; for (j = 0; j < lb; j++) { // j < is missed; if (array1[i].keyword == array2[j].keyword) { found = true; break; } } if (found == false) { unique.push(array1[i]); } } for (k = 0; k < lb; k++) { var found = false; for (l = 0; l < la; l++) { // j < is missed; if (array2[k].keyword == array1[l].keyword) { found = true; break; } } if (found == false) { unique.push(array1[i]); } } return unique; } let uniqueArr = diff(data.list1, data.list2);
Rendered benchmark preparation results:
Suite status: <idle, ready to run>

Previous results
Test case name	Result
findIndex
map
for loop
Fastest: N/A

Slowest: N/A

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Latest run results:
Run details: (Test run date: 2 years ago)
User agent: Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/100.0.4896.75 Safari/537.36
Browser/OS: Chrome 100 on Linux
View result in a separate tab
Test name	Executions per second
findIndex	242.6 Ops/sec
map	134.2 Ops/sec
for loop	225.4 Ops/sec
Uniqe Items from Two array of Object (version: 3)

Comparing performance of: findIndex vs map vs for loop

Created: 2 years ago by: Registered User

Jump to the latest result

findIndex

map

for loop

Suite status: <idle, ready to run>

Experimental features:

Fastest: N/A

Slowest: N/A
